Medium5.3Red Hat & Ubuntu Linux
Python base64: Incomplete data decoding due to premature stop at padding
CVE-2026-3446 Published Apr 10, 2026
CVE-2026-3446
Affected products & platforms
Red Hat & Ubuntu LinuxUnclassified
Summary
Python base64: Incomplete data decoding due to premature stop at padding. Red Hat rates this moderate (CVSS 5.3). Weakness: CWE-1286. Affected package(s): python3. Resolved in Red Hat advisory RHSA-2026:10118 — update the affected packages (`sudo dnf update`).
Affected versions
- python3-14-main-3.14.4-1.hum1
- python3-12-main-3.12.13-3.1.hum1
- python3-13-main-3.13.13-1.hum1
Official advisory · high-confidence parse· fetched 5 hours ago·verify at source
Fixed versions
- RHSA-2026:10118
Official advisory · high-confidence parse· fetched 5 hours ago·verify at source
Mitigation checklist
Recommended fix / mitigation
- Update the affected package(s) to the fixed version shipped in RHSA-2026:10118 (`sudo dnf update` / `yum update`).
Official advisory · high-confidence parse· fetched 5 hours ago·verify at source
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